Potato Gratin with Sage and Parmigiano Reggiano
25 Minutes
Prep Time
30 Minutes
Cook Time


  • 3 lbs yukon gold or red potatoes, peeled and sliced ¼” thick
  • ½ cup thinly-sliced onion (¼ of a large onion)
  • 3 tsp kosher salt
  • 3 cups heavy cream (see notes for substitutions)
  • ¼ tsp black pepper
  • ⅛ tsp ground nutmeg
  • 1 tbsp Western Family unsalted butter
  • 6 Western Family fresh sage leaves
  • ⅓ cup finely-grated Parmigiano Reggiano


  1. Preheat oven to 350ºF.
  2. Layer potatoes alternately with onions in a 12-inch oven-proof skillet, sprinkling with salt as you go. Pour cream overtop and sprinkle with black pepper and nutmeg (if using). Add sage leaves and give the mixture a gentle stir.
  3. Transfer to stove and bring to a rapid simmer over medium-high heat. Reduce heat to low and cook uncovered for 15 minutes, gently stirring occasionally, until cream is slightly thickened and potatoes are about half cooked. The cream will taste salty as it simmers but the salt will move into the potatoes to perfectly season them.
  4. Dot the top of the potatoes with butter, sprinkle with parmigiano reggiano, and bake until cheese is golden and potatoes are tender, about 15 minutes.